export declare const setBackgroundFetchToken: () => Promise<{
    errMsg: string;
}>;
export declare const onBackgroundFetchData: () => Promise<{
    errMsg: string;
}>;
export declare const getBackgroundFetchToken: () => Promise<{
    errMsg: string;
}>;
export declare const getBackgroundFetchData: () => Promise<{
    errMsg: string;
}>;